Related by context. Frequent words. (Click for all words.) 63 GeoResources Inc. 63 Parallel Petroleum 60 Callon Petroleum Company 60 Concho Resources Inc. 59 Newfield Exploration Company 59 Whiting Petroleum Corporation 59 EXCO Resources Inc. 59 BBEP 58 Denbury Resources Inc. 58 Approach Resources 58 Magnum Hunter Resources 58 Legacy Reserves 58 Magnum Hunter 57 GMXR 57 Crimson Exploration 56 NYSE RRC 56 GMX Resources Inc. 56 Brigham Exploration 55 Petrohawk Energy Corporation 55 Quest Resource 55 Comstock Resources 55 Targa Resources Partners LP 55 Denbury 55 NGAS 54 Gastar Exploration Ltd. 54 Petrohawk 54 Rosetta Resources 54 Whiting Petroleum 54 Brigham Exploration Company 54 Copano Energy LLC 54 QEP Resources 54 MarkWest Energy Partners 54 Vanguard Natural Resources 53 BPZ Energy 53 Quicksilver Resources 53 LINN Energy 53 Atlas Pipeline Partners 53 Newfield Exploration 53 Allis Chalmers Energy 53 Atlas Pipeline 53 Gasco Energy 52 DCP Midstream Partners LP 52 Ultra Petroleum 52 Quicksilver Gas Services 52 Exco Resources 52 Cimarex Energy 52 Targa Resources 52 EVEP 52 Harvest Natural Resources 52 Kayne Anderson Energy 51 Abraxas Petroleum Corporation 51 Nitro Petroleum 51 EXCO 51 MarkWest Hydrocarbon 51 Sterling Bancshares 51 Hyperdynamics 51 Flotek Industries Inc. 50 TXCO 50 ENSCO International 50 MarkWest Energy Partners LP 50 XTO Energy Inc. 50 Monogram Energy 50 Anworth Mortgage Asset 50 NATCO Group 50 VAALCO 50 Cimarex Energy Co. 50 OGE Energy 50 Kohlberg Capital 50 PanOcean 50 PetroQuest 50 Royale Energy 50 Crosstex Energy 50 Exterran 50 Cal Dive International 50 Corporation NYSE CHK 49 Denbury Resources 49 Nabors Industries Ltd. 49 NYSE MRO 49 TODCO 49 NYSE XTO 49 Bronco Drilling 49 Cimarex 49 Energy Partners LP 49 PAA Natural Gas 49 Proved Reserves 49 Pioneer Drilling 49 Williams NYSE WMB 49 Transfer Partners LP 49 NorthStar Realty Finance 49 Asset Acquisition 49 Carrizo Oil & 48 NYSE APC 48 NFX 48 GSC Investment 48 Inc. NYSE OKE 48 Targa Resources Partners 48 Arkoma Basin 48 Boardwalk Pipeline Partners LP 48 Baytex Energy Trust 48 EQT Corporation 48 Cano Petroleum